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diff --git a/doc/guides/nics/mlx5.rst b/doc/guides/nics/mlx5.rst
index d6082ac..4115520 100644
--- a/doc/guides/nics/mlx5.rst
+++ b/doc/guides/nics/mlx5.rst
@@ -162,6 +162,12 @@ Limitations
To receive IPv6 Multicast messages on VM, explicitly set the relevant
MAC address using rte_eth_dev_mac_addr_add() API.
+- The amount of descriptors in Tx queue may be limited by data inline settings.
+ Inline data require the more descriptor building blocks and overall block
+ amount may exceed the hardware supported limits. The application should
+ reduce the requested Tx size or adjust data inline settings with
+ ``txq_inline_max`` and ``txq_inline_mpw`` devargs keys.
+
- E-Switch decapsulation Flow:
- can be applied to PF port only.
@@ -400,6 +406,10 @@ Run-time configuration
option should be used with care, as it may lower performance when back
pressure is not expected.
+ If inline data are enabled it may affect the maximal size of Tx queue in
+ descriptors because the inline data increase the descriptor size and
+ queue size limits supported by hardware may be exceeded.
+
- ``txq_inline_min`` parameter [int]
Minimal amount of data to be inlined into WQE during Tx operations. NICs